The Mammangi Festival is celebrated annually in the capital of the Province of Isabela. The word Mammangi is an Ibanag term for “corn farmers”. This festival pays homage to the rich agricultural heritage of the city, which focuses on corn production as one of the significant farming activities among the first ethnic inhabitants of the City of Ilagan, the Corn Capital of the Philippines.
The festival activities include the Agri-Ecotourism Tienda Ilagan, Cultural Olympics, Search for Binibining Ilagan, Barangay Night, Off-Road Challenge, Motor Show, Street Dance and Showdown Competition, Grand Musical Concert, Gawad Ilagueño, and Grand Concert.
